France's most famous cemetery, with some of its most curious tombs.

This beautifully deceptive waterfall is something far different from what it appears to be.

The stoutest tree in the world.

A "miracle" that seems to produce more holy fistfights than holy revelations.

A battle between nature and architecture in the Cambodian jungle.

Ozymandias’ time-keeping temple.

Macabre astrological automaton clock dating to the late 1400s.

A layered tribute to the work of mosaicist Isaiah Zagar.

World's first "penitentiary," meant to be humane, drove men insane.

A church of bones, decorated with 40,000 human skeletons.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.